Task 55775745
log in
NameTF_76-77_163-178M_wu_23396_1
Workunit50196882
Created30 May 2026, 5:50:58 UTC
Sent30 May 2026, 6:25:08 UTC
Report deadline5 Jun 2026, 6:25:08 UTC
Received30 May 2026, 21:07:58 UTC
Server stateOver
OutcomeComputation error
Client stateCompute error
Exit status195 (0xc3) EXIT_CHILD_FAILED
Computer ID248535
Run time34 sec
CPU time2 sec
Validate stateInvalid
Credit0.00
Device peak FLOPS11,767.82 GFLOPS
Application versionTF v0.49 (cuda128)
Peak working set size146.19 MB
Peak swap size495.53 MB
Peak disk usage4.95 MB

Stderr output

<core_client_version>8.2.11</core_client_version>
<![CDATA[
<message>
The operating system cannot run (null).
 (0xc3) - exit code 195 (0xc3)</message>
<stderr_txt>
2026-05-30 23:53:44 (34824): wrapper (7.24.26018): starting
2026-05-30 23:53:44 (34824): wrapper: running mfaktc-win-64.exe (-d 0)
2026-05-30 23:53:44 (34824): wrapper: created child process 36896
mfaktc v0.24.0 (64-bit build)

Compile-time options
  THREADS_PER_BLOCK         256
  SIEVE_SIZE_LIMIT          32 kiB
  SIEVE_SIZE                193154 bits
  SIEVE_SPLIT               250
  MORE_CLASSES              enabled

Runtime options
  SievePrimes               25000
  SievePrimesAdjust         1
  SievePrimesMin            5000
  SievePrimesMax            100000
  NumStreams                3
  CPUStreams                3
  GridSize                  3
  GPU sieving               enabled
  GPUSievePrimes            82486
  GPUSieveSize              512 Mib
  GPUSieveProcessSize       16 Kib
  Checkpoints               enabled
  CheckpointDelay           60 s
  WorkFileAddDelay          600 s
  Stages                    disabled
  StopAfterFactor           bit level
  PrintMode                 compact
  Logging                   disabled
  V5UserID                  (none)
  ComputerID                (none)
  AllowSleep                yes
Warning: Cannot read LegacyResultsTxt from mfaktc.ini, set to 0 by default
  LegacyResultsTxt          no
  TimeStampInResults        no
Warning: Cannot read TimestampOnSameLine from mfaktc.ini, set to 0 by default
  TimestampOnSameLine       no
Warning: Cannot read ResultsFileTimestampInterval from mfaktc.ini, set to 1 by default

CUDA version info
  binary compiled for CUDA  12.8
  CUDA runtime version      12.8
  CUDA driver version       13.2

CUDA device info
  name                      NVIDIA GeForce RTX 4080 SUPER
  compute capability        8.9
  max threads per block     1024
  max shared memory per MP  102400 bytes
  number of multiprocessors 80
  clock rate (CUDA cores)   2610 MHz
  memory clock rate:        11501 MHz
  memory bus width:         256 bits

Automatic parameters
  threads per grid          655360
  GPUSievePrimes (adjusted) 82486
  GPUsieve minimum exponent 1055144

running a simple self-test...
Self-test statistics
  number of tests           104
  successful tests          104

self-test PASSED!

got assignment: exp=177275827 bit_min=76 bit_max=77 (86.33 GHz-days)
Starting trial factoring M177275827 from 2^76 to 2^77 (86.33 GHz-days)
 k_min =  213108196995540
 k_max =  426216393992139
Using GPU kernel "barrett87_mul32_gs"
Date    Time | class   Pct |   time     ETA | GHz-d/day    Sieve     Wait
May 30 23:53 |    0   0.1% |  2.754  44m01s |   2821.23    82485    n.a.%
May 30 23:53 |    5   0.2% |  3.627  57m55s |   2142.18    82485    n.a.%
May 30 23:53 |    8   0.3% |  4.022   1h04m |   1931.79    82485    n.a.%
May 30 23:54 |   12   0.4% |  4.131   1h05m |   1880.82    82485    n.a.%
May 30 23:54 |   29   0.5% |  4.167   1h06m |   1864.57    82485    n.a.%
May 30 23:54 |   32   0.6% |  3.388  53m52s |   2293.29    82485    n.a.%
May 30 23:54 |   33   0.7% |  2.903  46m07s |   2676.43    82485    n.a.%
May 30 23:54 |   44   0.8% |  3.060  48m33s |   2539.11    82485    n.a.%
x mod p out of range!! x = 845314, p = 61071, pinv = 70476, r = 784243
May 30 23:54 |   48   0.9% |  1.515  24m01s |   5128.50    82485    n.a.%
ERROR: cudaGetLastError() returned 700: an illegal memory access was encountered
2026-05-30 23:54:17 (34824): mfaktc-win-64.exe exited; CPU time 2.171875
2026-05-30 23:54:17 (34824): app exit status: 0x1
2026-05-30 23:54:17 (34824): called boinc_finish(195)

</stderr_txt>
]]>


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